By Hillary Rosner
Posted 06.11.2009 at 6:45 am 1 Comment
The Big Picture: Carbon-restricting legislation, if enacted, will discourage the use of coal, the dirtiest of all fossil fuels. Natural gas is cleaner but still emits carbon dioxide when burned. Both will be used for decades, but carbon-capture technology could clean them up until they can be replaced completely.
Where We Are Now: 1,460 GW What We Need by 2050: 3,830 GW (all of it clean) Tech to Watch: Carbon-to-cement
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.